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M. DITTENHOEPER.

S SYRINGE. No. 285,978. Patented Oct. 2, 1883 WITNESSES: S INVENTORATTORNEY n. PETERS. Phmoillhogn bnr, wmm wn. n c

UNITED STATES MYER DITTENHOEFER, OF NEW YORK, N. Y.

SYRINGE.

SPECIFICATION forming part of Letters Patent No. 285,978, datedOctober2, 1883,

- Application filed March 15,1888. (No model.)

To all whom it may concern.-

Be it known that I, MYER DITTENHOEFER, of the city, county, and-State ofNew York, have invented certain new and useful Improve ments inSyringes, of which the following is a specification. 1 v

This invention has reference to certain improvements in syringesthat canbe carried conveniently in the pocket without soiling the same; and theinvention consists of a syringe the barrel of which is provided at itsfront end with a nozzle and a detachable nozzle-cap, and at its rear endwith a screw-plug, in combinalion with a piston-rod provided with aflanged button that fits tightly over the screw plug, and is threaded atits rear portion for applying the nozzle-cap.

In the accompanying drawings, Figure 1 represents a side view of myimproved syringe; and Figs. 2 and 3 are vertical longitudinal sectionsof the same, respectively, with the pis ton drawn back and pushed in.

Similar letters of reference indicate corresponding parts.

A in the drawings represents the barrel of my improved syringe, and Bthe nozzle of the same, which is formed integral therewith, the

whole being preferably made of hard rubber or other suitable material.The base of the nozzle B is either screw-threaded or otherwise arrangedfor applying thereto a tightly-fitting detachable cap ornozzle-protector, O. The opposite end of the barrel A is closed by ascrew-plug, A, over which is tightly fitted .a flanged orcup-shaped-button, D, that is seouredto the outer end of the piston-rodD. When the syringe is desired to be used, the nozzle-cap G is detachedfrom the nozzle'and ap- -rel having a nozzle,

] plied to the threaded rear end, (1, of the button D, as shown in Figs.2 and 3. The protector 0 forms thereby an extension of the button D ofthe piston-rod D, so that the syringe can be handled with greaterconvenience. The forward-extending flange of the button D fits tightlyover the screw-plug A and the rear end of the barrel A, so as to closethereby the rear end of the syringe, while the cap closes tightly thenozzle.

The syringe can be readily carried in the pocket, after having beenused, without soiling the same, as the nozzle-cap and the button of thepiston-rod fit tightly over the nozzle and the screw-plug of the barrel.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. In a syringe, the combination, with the barrel A,having a plug, A, at its rear end, of a piston-rod, D, having a flangedbutton, D, at its rear end, the flange of said button fitting tightlyover the screw-plug of the barrel, substantially as specified.

2. The combination, in a syringe, of a bar- B, with screw-threaded baseatone end and a screw-plug, A, at the other end, with a detachablenozzle cap or protector, O, and a button, D, at the end of thepiston-rod D, said button having a forward extending flange, tion, (1,substantially as specified.

In testimony that I claim the foregoing as my invention I have signed myname in pres ence of two subscribing witnesses. I

M. DITTE1\ HOEFER.

d, and a threaded rear por-

